MX2007015591A

MX2007015591A - Roller blind mounting system and parts therefor.

Info

Publication number: MX2007015591A
Application number: MX2007015591A
Authority: MX
Inventors: Joerg Bohlen; Lars Koop
Original assignee: Hunter Douglas Ind Bv
Priority date: 2006-12-14
Filing date: 2007-12-07
Publication date: 2009-02-12
Also published as: BRPI0704625B1; US8151859B2; SG177889A1; CL2007003639A1; CA2613690A1; AR064329A1; CA2905672A1; KR101540471B1; CN101597999A; CN101597999B; CL2010000555A1; AU2007240252A1; CA2613690C; BRPI0704625A; US20120193042A1; HK1114146A1; US7740047B2; AU2007240252B2; US20100236730A1; TWI438335B

Abstract

A roller blind mounting system including at least one roller, at least one telescopic end plug and at least two brackets. The telescopic end plug is engageable within an end-opening of one of said rollers. The end plug includes a hollow body and a telescopically movable member or plunger co-axially positionable with respect to the hollow body such that a first axial extending length portion of the plunger projects from the hollow body and a second axial extending length portion is held within the hollow body. The plunger is telescopically movable between a first end position in which the first portion of the plunger projects from the cylindrical body and a second end position in which at least part of the first portion is inserted into the cylindrical body.

Description

ONLY SYSTEM OF ROLLED BLIND SHUTTER AND PARTS FOR THE SAME FIELD OF THE IBJVEKfCIOB? This invention relates to a system for mounting an architectural opening roll and parts of the system. BACKGROUND OF THE SWENCICS? Various blinds are known to selectively cover architectural openings. Many of these include rolls that are rotatably mounted, usually in a horizontal orientation, for example through the top of an architectural opening. To facilitate the installation of the roll, a device can be provided by means of which a pair of clamps are mounted at opposite ends of a top frame of an architectural opening. The roll is then fitted between the two clamps. Various ways of coupling the roll between the clamps are possible. The ends of the roll can be provided with end plugs which extend coaxially with axial holes to receive a tongue-like projection from the clamps. Alternatively, the ends of the roll can be provided with coaxially extending end plugs and the end plugs are provided with tabs or projections that are axially projected for insertion into an aperture in a REF-glSS-fiSl. clamp. Or, in the case where the rolled shutters are mounted side by side, the central arrow of the rolled shutters can be coupled together and the end pins can be provided so that the arrow coupling means is mounted on an intermediate clamp . For a roll to be secured in place between two clamps, the distance between the ends of the roll must be greater than between the clamps. Providing a roll with a terminal pin that can move telescopically solves this problem. Upon being retracted or depressed, such a terminal pin reduces the effective length of the roll and the distance between the two ends of the roll, when extended the terminal pin restores the roll to its original length. Often additional locking means are provided which prevent inadvertent retraction or depression of the telescopically moving terminal pin and therefore inadvertent uncoupling of the clamp roll, and is described in GB 2,310,878 and GB 2,313,143. BRIEF DESCRIPTION OF THE IWENCSÓM In this regard, GB 2,310,878 discloses an end plug (20) for a rolled shutter that includes a telescopic movable drum (6) biased to a position extended by a spring (30). The immobilization means comprises a spring C-clip (40) which - - it can be placed around the projection portion (7) of the telescopic movable drum (6) between the roll end (23) and the end (8) of the drum (6), and prevents the telescopic member (6) from moving axially inside the end plug (20). This solution has the disadvantage that the brooch in C (40) needs to have a size in relation to the blind for which it is used. If it is too long, exceeding the length of the projected portion of the telescopic member of the terminal pin, it will not connect. GB 2,313,143 discloses an immobilization ring (100) for positioning around a movable stud (54), which is biased to a position extended by a spring. The locking ring (100) is placed around the stud (54), pushed until it contacts the roll end (10) remote from the clamp (80) and is locked in place with a sear screw. The ring has a radial through hole (102) with the detent screw (104), which when tightened, immobilizes the ring (100) in place. The ring (100) prevents depression of the stud (54) and therefore avoids accidental separation of the shutter from its clamps. This solution has the disadvantage that if the ring is placed, attention must be paid to the reach of the securing screw (104) as well. Accordingly, an object of the invention is providing a roll mounting system with a terminal plug module that resolves or diminishes the disadvantages of the end plugs of GB 2,310,878 and GB 2,313,143. Another problem related to mounting a roll to a surface is to mount it in a level way. If the roll is mounted with the clamps placed unevenly or the clamps are mounted on a twisted surface, this will generate an unpleasant situation. Although the fact that the roll is not level is often not immediately apparent to the naked eye, this will be noticed once the shutter material is unwound. Subsequently, when the blind material is rolled through a non-level roll, it will deviate and can be damaged by being improperly held by the roll. The sides of the shutter material can be mounted against the sides of the architectural opening, hindering the operating mechanism or even being pressed between the roll clamp. In the event that the blind includes side guides, which is often the case for wire cloths and completely opaque rolled shutters, the edges of the wire cloth or blind material are not maintained in the side guides. As a result, insects and / or light will enter the building. Generally, the blind is leveled by the use of oblong mounting holes in the shutter clamps. A subsequent adjustment of the clamp position requires skilled hands and / or dismantling of the clamp roll to facilitate reaching and manipulating them. Generally, it is a problematic process. Another solution is to use clamps with an integrated leveler that acts directly or indirectly on the roll of the blind. Said clamps are described in the documents of E.U.A. 6,195,508 and DE 103 51 336. In this regard the document of E.U.A. No. 6,196,508, discloses a rolled shutter clamp with a centrally located cutout portion (11), which is slidably located in a vertically adjustable slider (4) which rests on a threaded leveling screw (5). The threaded leveling screw (5) can be accessed from the bottom of the clamp. Alternatively, for a motorized blind, the slide (4) is omitted and the leveling screw (5) acts directly on the steel rod of the motor. By adjusting the leveling screw (5), the entire rolled shutter (13) can be adjusted. DE 103 510 336 discloses a rolled-up wire cloth blind with a leveler (22) on a roll holder (14) which includes a portion (28) trimmed and a leveling screw (34) acting on the stud (30) of the roll. These levelers are integrated with the clamps. Alternatively, the document of E.U.A.

No. 7,051,782 discloses a leveler which is not integral with the clamp but is assembled thereto starting from two separate plate-like members 158, 160. Fasteners 46 are used to attach the plates to the clamp, one of the plates is fixed and the other is operable to move relative to the fixed plate. This is essential for any leveler, each leveler necessarily including a base to be fixed to a fixed surface such as a clamp, and an operator connected to said base that can be moved between two positions and which acts directly or indirectly at one end. of roll in order to move the roll between these two positions. The use of known levelers of the prior art requires either a pre-arranged selection of the use of a clamp with an integral leveler or a problem subsequent to the difficult installation of the leveler once it is needed, after all. Thus, another object of the invention is to provide a leveling module for the roll mounting system which does not have these drawbacks and is easy to handle.

Another problem related to the mounting of a roll to a surface are the clamps. When a rolled shutter is mounted on a window in the ceiling or a window in a sunny room that is inclined, the clamp will cause the blind to be at an angle to the window unless a specially shaped clamp is used which cancels the blind. angle of the window frame. Said clamp is described in EP0784145, this clamp includes an adjustment means that can cancel the angles of the window in relation to those of the blind. In addition, it is often necessary to select different modules for a roll system that often require different clamps. For example, an intermediate clamp in a composite roll system has at least two rolls mounted one close to the other, and often of different configuration from the external clamp. According to one aspect of the invention, there is provided a roller shutter assembly system of the invention comprising at least one roll, at least one telescopic terminal pin that can be engaged within an end opening of one of the rolls, the terminal pin includes a hollow body and a telescopically movable member or plunger that can be positioned coaxially with respect to the hollow body so that a first axially extending length portion of the plunger projects from the hollow body and a second axial extending length portion is held within the hollow body and the plunger is telescopically movable between a first end position in which the first portion of the plunger projects from the cylindrical body and a second end position in which at least part of the first portion is inserted into the cylindrical body, and at least two clamps which include a central opening in the first portion of the cylindrical body. axial length that is mountable with the central opening of the clamp. Advantageously, the telescopic terminal plug further has a rotatable end cap which is rotatably fixed to the end of the second longitudinal portion of the end cap which is adapted to be received in the central opening of the clamp so that the telescopic terminal pin and the roll attachable with it are rotatably mounted to the clamp. According to another aspect of the invention, the clamp further includes at least a pair of openings placed around the central opening and the opening of each pair are aligned with each other and the mounting system further includes an operating module or a module or both, which are provided with an adapted mounting means to cooperate with at least a couple of slots of the clamp. Advantageously, the mounting means are hook-like members adapted to project through the openings in the clamp and hold the edge of the openings. In addition, each of the hooks includes a stem portion and a grip portion extending from the top of the stem portion. Advantageously, the hook holding portion extends laterally from the top of the stem portion. stem. Alternatively, the fastening portion of the hook extends downwardly from the stem portion. According to another aspect of the invention there is provided a combination of a clamp and a module of which the module is adapted to cooperate with the clamp and the clamp includes a rim with at least one pair of openings placed spaced apart and opposite each other on the flange around the central opening and the module includes at least a pair of mounting means adapted to cooperate with at least a pair of slots in the clamp. According to a further aspect of the invention, a telescopic terminal pin is provided which can be engaged within an end opening of a roll and includes a hollow body and a telescopically movable member or plunger that can be positioned coaxially with respect to the hollow body so that the first length portion extending axially of the plunger projects from the hollow body and the second axial length extending portion is held within the hollow body and the plunger can move telescopically between a first end position in which the first portion of the plunger projects from the body cylindrical and a second end position in which at least part of the first portion is inserted into the cylindrical body, and the terminal pin further includes an immobilization member that can be placed on the first portion of axial length to immobilize the plunger preventing movement towards the second end portion and the first axial length extending portion of The plunger is threaded and the locking member can be rotatably received on the threading so that it can be placed on the first length portion to immobilize the plunger preventing axial movement towards its second end position beyond the locking member. According to a further aspect of the invention, a leveling module is provided which includes a base member and a mounted roll carrier - - slidably to the base member, an operator between the base and the roll carrier and connected thereto so that the manipulation of the operator causes the roll holder to slide relative to the base member and the leveling module further includes a means of mount adapted to removably mount the module to a clamp. In this way, the invention solves the problems related to the assembly of rolled shutters. BREVB DESCRIPTION OF THE FIGURES The invention will be further described with reference to the accompanying drawings, in which: Figure 1 is a schematic perspective view of a rolled shutter mounted between two clamps and equipped with the roll mounting system of the invention which includes a telescopic terminal pin with the locking means in the released position which allows depression of the terminal pin in the roll. Figure 2 is a cross-sectional view of a first embodiment of the roll mounting system of the invention with the telescopic part and the plug mounted on a clamp and when the locking member is in immobilized position prevents insertion of the terminal pin in the roll. Figure 3 is an exploded view of the embodiment of Figure 2.

Figure 4 is a schematic perspective view of the rolled shutter of figure 1 to which the leveling module is added. Figure 5 is a schematic perspective view of the leveling module of Figure 4 adjacent to a mounting bracket to which it can be attached. Figure 6 is a perspective view from the rear of a clamp to which the leveling module is mounted. Figure 7 is an exploded view of the leveling module. Figure 8 is a general perspective view of a second embodiment of the roll mounting system of the invention in which a set of adjacent rolled shutters having a common intermediate support bracket is mounted and each of the rolled shutters includes a terminal plug of the invention and the two blinds share a leveling module. Figure 9 is a partial exploded view of the second embodiment of the system of the invention. Figure 10 is a partially exploded view of the roll system of the invention; Figure 11 is an elevation of the operation unit of Figure 10 from its driving end; Figure 12 is a cross section of the unit of operation according to line C-C in figure 11; And Figures 13A13B and 13C are successive positions during the union of an operating unit to a mounting bracket. DETAILED DESCRIPTION OF THE XWEECZOM Telescopic terminal plug re 1 shows a rolled shutter 1 with a roll 3 that is mounted between the left and right mounting bracket 5, 7. The material 9 of the blind is schematically indicated and can be rolled and unrolled from the roll by operation of a rosary chain operation mechanism 11. A telescopic end plug 13 at the right end 3A of the roll 3 facilitates the assembly of the roll. Pressing the end plug 13 reduces the effective length of the roll 3 which makes it easier to place it between the two clamps 5, 7. The deployment of the end pin 13 to its extended position restores the roll 3 to its previous length which allows The roll is connected to the left and right clamps by means of the appropriate end plugs on both sides. A locking ring 15 prevents inadvertent depression of the telescopic end plug 13. In re 1, the ring 15 is shown in the released position, adjacent to the outer end of the telescopic terminal pin. When placing the ring adjacent to the end 3A of the roll, the depression of the telescopic terminal pin is prevented. In Figure 2, the roll 3 and the telescopic terminal pin assembly 13 are shown in cross section as they would be mounted on the right clamp 7, Figure 3 shows these parts in a view with the parts separated. In figures 2 and 3 only part of the roll 3 is shown. It is a conventional roll for a rolled shutter. The roll 3 is a tube-like member of generally cylindrical cross-section typically made of aluminum, steel or plastic. Axially projecting inward there are reinforcing ribs 17 and at least one groove 19 extending along its axial length of the roll. The ribs 17 provide an internal configuration of the roll to hold the terminal pin and the groove is for the joining of the fabric of the shutter. The terminal plug assembly 13 includes a hollow cylindrical body or sleeve 21, a telescopically movable member or plunger 23, a spring 25 and a ring 17. The sleeve 21 is of generally cylindrical cross section and has a portion 27 similar to tube which extends between a left internal or axial end 29 and a right external or axial end 31. He tube 27 includes ribs 33 extending axially and projecting radially outwardly so that the body can be placed inside the roll 3, the sleeve ribs engage the ribs of the roll. The external axial end 31 has a radial collar 35 with a radial inner surface 37 which abuts the axial external end 3A of the roll 9 when the cylindrical body is inserted into the roll. Within the hollow cylindrical body 21 and adjacent to the left inner or axial end 29 is a retainer 39 fixed coaxially with the body 21 to support both the plunger 23 and the spring 25. The retainer 39 includes a circular (radial) base or a stop surface 41 facing the right axial end 31 of the tube 27, the radius of the stop surface is smaller than the radius of the tube 27. Projected axially from the base 41 and towards the right axial end 31 is a tube 43 retainer which is coaxial with the tube 27 of the cylindrical body and is of a smaller radius than the base 41. Projecting axially from the base 41 and towards the left axial end 29 are at least two, and preferably three flanges 45, 47 and 49 radially spaced and extending axially. Each flange 45, 47 and 49 is separated from the inner surface of the tube 27 while following the radius thereof. Each flange 45, 47 and 49 has ribs extending radially to the left and to the right, 45A, 45B, 47A, 47B and 49A and 49B connecting the flanges to the inner surface of the tube 27 and thus defining the axial passages 51, 53 and 55 between the coaxial flanges 45, 47 and 49 and the inner surface of the tube 27. The inner surface of the tube 27 is provided with a plurality of grooves 57 extending axially radially apart. The grooves 57 extend axially from at least the right end 31 or axial external to the base 41 of the retainer 39. The telescopically movable member or plunger 23 from the end plug assembly 13 is suitable for insertion into the body 21 hollow cylindrical from the outer or right axial end 31 thereof, towards the inner or left end 29. The plunger 23 is of generally cylindrical cross section of a smaller radius than the cylindrical body 21. The plunger 23 includes a center or base section 61, a left or inner portion 63 and a right or outer portion 65, each extending on opposite sides from the center section 61. The central or base section 61 is a tube-like portion 67 with a plurality of axially extending ribs 69 radially spaced radially on the external surface of the base 63. The ribs 69 are designed to cooperate slidably with the grooves 57 of the base. inner surface of the tube 27 of the cylindrical body 21. The left or internal part 63 projects axially from the base 61 and comprises at least two, and preferably three radially spaced tabs 71, 73 and 75. The tabs 71, 73 and 75 can be reliably retained in the axial passages 51, 53 and 55 defined between the retainer 39 and the body 21. Movement of the plunger in the axial direction is possible because the tabs move within the axial passages 51, 53 and 55. The plunger tabs, 71, 73 and 75 can extend beyond the left end 29 of the body 21 when the plunger is inserted deep into the body. However, the central section 61 of the plunger 23 will impinge on the base 41 of the retainer when the plunger 23 is inserted at its maximum depth in the body. In order to prevent inadvertent uncoupling of the plunger 23 from the cylindrical body 21, each of the tabs 71, 73 and 75 includes a projection 71A, 73A and 75A at the axial end from the base 61 on the outer surface of the tabs which cooperate with a slotted portion 29A of the internal axial end 29 of the cylindrical body 21. Inserted inside the cylindrical body 21, the projections 71A, 73A and 75A are pressed behind the slotted portion 29A and thus prevent the decoupling of the body plunger.

The right or external part 65 of the plunger 23 projects axially from the opposite base 61 from the internal part 63. The inner part 65 is provided with a circumferential screw thread 77 and with a plurality of windings 79. The axial end 81 of the outer part 65 is provided with an axially extending stud 83 which in turn has a through opening 83A adequate axial to receive an arrow. The opening 83A necessarily has the same cross section as the arrow for which it is designed. The arrows in the rolled shutters are generally used for operational connection of two blinds side by side, so that these blinds need only a single operating system, either manual or motor-driven. The internal diameter 83A of the opening is smaller than that of the stud 83, while the external diameter 83 of the stud is smaller than that of the piston 23. The circumferential screw thread 77 receives the locking ring 15 which is provided with a threaded 85 suitable for moving on the circumferential thread 77. Preferably, the threads are selected to be self-braiding threads in order to prevent the ring 15 from moving along the circumferential threading due to vibrations caused by the installation or use of the roll. The ring lock or disc-like nut 15 has a - - external circumferential surface that is provided with grooving or teeth 87 for easy manipulation thereof. Alternatively, the ring 15 can be formed as a hexagonal nut. A rotatable mounting cap 89 is rotatably mounted on the stud 83 and the total diameter of the cap and stud are designed to be placed in a central mounting aperture 7A of the clamp 7. The cap 89 includes a collar 91 that projects radially whose external surface makes contact with the surface of the clamp 7 when the roll is mounted therein, so that the roll can rotate in relation to the clamp and the cover 89. The radially projecting collar 91 further prevents the ring 15 inadvertently runs away from plunger 23, especially when the roll is not yet mounted on the clamp. The cover 89 is hollow and surrounds the stud and thus maintains free the stud opening 83A suitable for receiving an arrow. The compression spring 25 has a first winding 26A left and a first winding 25B right and a plurality of windings between them. The spring 25 is preferably made of steel and can be used on the terminal pin to deflect the plunger 23 in the direction of the external axial end 31 of the body 21. For this purpose, the stud 83 projects axially within the outer portion 65 so that the body 84 of the coaxial stud is formed within the plunger 23. The stud body 84 includes a circular base 84B (radial) between the stud body 84 and the inner surface of the plunger 23. When used , the spring will be supported with an end winding 25A on the base 41 of the sleeve retainer and with the other end winding 25B on the base 84B of the piston stud body. The spring 25 will have a length greater than the distance between these two bases 41, 84B and P ° r 1 ° so as to deviate the plunger to its extended position. If so desired, an additional installation tool 93 can be used for ease of mounting the roll to the clamp. The tool 93, as shown in Figure 3, is what is called a placement tip and includes a positioning cone 95 and an arrow head 97. The arrow head 97 is inserted into the opening of the stud and the cone 95 of Tip provides greater ease of installation. Specifically, the tip cone 95 assists the installer in placing the central opening 7a of a clamp 7 without the need for a clear line of sight. Once the roll is installed, the tool 93 can be removed from the side opposite the clamp by pulling the tip cone 95, since the stud coincides with the central opening of the clamp and the tool projects from the stud. Clamps 5 and 7 are similar and both have a first flange 101 extending generally horizontally and vertically depending on extending to the second flange 103. The first flange 101 has slots 105, 107 and 109 for receiving fasteners (not shown but conventional) for mounting the first flange against and either the bottom of the surface of a horizontal building or the surface of a vertical building adjacent to the window opening. The second flange 103 has similar slots 111 and 113 for alternative mounting to a vertical building surface in proximity to a window opening. The second rim 103 of the clamp has a pattern of radially distributed slots or oblong holes 115 distributed around the central opening 7A. For the left bracket 5, these oblong holes are used to receive a pair of opposite mounting hooks of the operator module 11 (as explained in relation to Figures 10-13). The spacing of each pair of oblong holes 115 radially aligned corresponds to the spacing between said mounting hook members on the operator module 11. As will be explained later, in relation to Figure 5, the oblong holes 115 radially aligned can also be used for the assembly of other modular parts such as a leveling module 200. The distribution of the four pairs of openings 115 aligned radially it allows a selection of the angular positions in which the modules can be mounted with respect to the flange of the clamp. In order to assemble or disassemble the roll of the clamps 6, 7 the locking eye 5 needs to be in a released position. The released position is any position of the ring 15 in the threading 77 of the external part 65 of the plunger 23 remote from the immobilized position and thus the right roll end 3A, and allows the depression of the plunger 23 to be in a sufficient extension that reduces the effective length of the roll 3 for mounting or dismounting the roll between the clamps 6, 7. Preferably, the released position of the locking ring 15 is adjacent to the axial end 81 of the external part 65 of the plunger 23, as shown in the figure 1. Once the roll 3 is in place between the clamps, a spring-assisted end plug 13 can be released to extend to its original position and is fixed in place by rotation of the locking ring 15, to the position of immobilization. Or when the end pin 13 is without the compression spring 25, the plunger 23 needs to be manipulated to the extended position and is locked in place by rotation of the locking ring 15 to the immobilization position. The immobilized position is when the ring 15 is adjacent to the roll end 3A law. In this position, the locking ring 15 prevents depression of the plunger 23 of the end plug 13. This position is shown in Figure 2. This position, selected when the roll 3 is mounted on the clamps 6, 7 prevents inadvertent dismounting of the roll. Since the ring 15 is in the thread 77, it is very easy to handle, even with only one hand. Leveler Figure 4 shows rolled shutter 1 of the first mode to which the leveling module 200 is added. In this embodiment of the invention described, which is similar to that of Figure 1, they are used in the following corresponding reference numbers for the same or corresponding parts. The rolled shutter 1 of Figure 4 is shown with the roll 3 mounted between mounting brackets 5, 7, left and right. The material 9 of the blind is schematically indicated and can be rolled and unrolled from the roll by operation of the rosary chain operation mechanism 11. The telescopic end plug 13 at the right end 3A of the roll 3 is visible by its locking ring 15. As can be seen, the locking ring 15 is adjacent to the right roll end 3A and therefore the plunger (not visible) of the end plunger 13 is in its immobilized position.

The clamps 5 and 7 are mounted to a surface (S) of the roof and the roll 3 is mounted between them. As can be seen by comparing the roll axes (A) with this surface (S), it is twisted. Therefore a leveler is necessary. Adjacent to the right clamp 7, the leveling module 200 of the invention is placed. By operating the leveling module, a range of positions of the right roll end 3A can be selected between a lower position and a higher position. Figure 5 shows the leveling module 200 detached from the clamp 7. One of the advantages of the leveling module 200 of the invention with respect to the levelers of the prior art is that it can easily be mounted to the clamp 7 as a complete module. This is further explained in the description. The leveling module 200 includes a rotating mounting tray 202, a base member 204, a roll holder 206 defiably connected to the base member 204 with an operator 208 between the base 204 and the roll holder 206 and a cover ring 210 . Figure 6 shows the rear part of the clamp 7 with the leveling module 200 mounted thereto. The vertical flange 103 has a central depressed portion 117 in which the central opening 7A is located with the oblong mounting holes 115 distributed radially therethrough. As you can see, a plurality of - mounting means in the form of mounting hooks 212, 214, 216, 218 of the rotating mounting tray 202 and a plurality of location rings 220, 222, 224, 226 of the base member 204 projecting alternately through of the oblong mounting holes 115. Each mounting hook 212, 214, 216, 218 includes a stem portion 212A, 214A, 216A, 218A and a holding portion 212B, 214B, 216B, 218B extending laterally at the top of the stem portion. The bottom of the stem portions is connected to the back of the mounting tray 202. The location rings 220, 222, 224 and 226 have approximately the circumferential shape of the oblong holes 115 and therefore have a general oblong shape. The union of the leveler to the clamp is carried out in two stages; positioning the leveler against the bracket so that the hooks and locating rings project through the oblong mounting holes 115 and then rotate the mounting tray 202 clockwise to lock the leveler to the clamp by the hooks 212, 214, 216 and 218 fastened on the edges of the oblong holes 115. During the rotation of the tray 202, the location rings verify the leveling module support preventing rotation. In this way, the tray 202 rotates in relation to the rest of the leveling module and the hooks are fixed - - around the edges of the openings 115. The spacing between the hooks and the back of the mounting tray 202 is preferably equal to or slightly less than the thickness of the clamp material adjacent the oblong holes 115. The surface of the clamp in this manner will be held between the hooks and the back of the tray once the hooks are rotated to their immobilized position. Additional mobilization means 258, 270 and 272 are provided between the mounting tray and the rest of the leveling module which prevents the tray 202 from rotating on itself (e.g. caused by vibration or by operation of the blind or the like) in the opposite direction and therefore uncouples the clamp leveler. This immobilization means is described in relation to Figure 7. The leveling module 200 can thus be handled in a simple manner, even by one person, and can be mounted on a clamp similar to the quick release mechanisms of bayonet type. . This is particularly convenient for the suitability after installation thereto. It also makes expensive clamps obsolete with levelers integrally formed. Since rolled shutters with telescopic end plugs are also very easy to mount between two clamps, it is possible to postpone the decision of use a leveler until later. If, after assembly of the rolled shutter has a crooked appearance, the shutter can be easily uncoupled from the right clamp 7 and the leveling module 200 can be attached to the clamp and the shutter can be reassembled with the stud of the plug telescopic terminal in the central opening 228 of the roll holder 206 (which is visible in Figure 5). As shown in Figures 5 and 6, there are eight radially distributed openings 115 for which the leveler can be mounted. In this way, the angular orientation of the leveler is selectable in increments of approximately 40 degrees. This is convenient since the leveler can always be installed so that operator 208 can reach it. The leveling module 200 is explained in greater detail in relation to figure 7, which shows the leveling module in an exploded view. The mounting tray 202 is circular with a lower surface 230 which has a central opening 232 and four cutouts 234, 236, 238 and 240 distributed radially around the central opening. An axial limit 242 projects frontally away from the lower surface 230. The limit 242 includes two opposite recesses 244 and 246. The corrugated portions 250 on the outer circumferential surface 248 of the boundary 242 facilitate the handling of the limit and rotation of the mounting tray 202 while the leveling module is mounted. The mounting hooks 212, 214, 216 and 218 (not visible in Figure 7) project axially from the rear face 230A of the lower surface 230 of the mounting tray 202. An inner ring 252 coaxial to the boundary 242 forms a coaxial channel 254 for the cover ring 210. Extending radially from the top of the inner ring 252 and towards the center of the mounting tray 202 are four pressure-setting beads 256 which prevent the leveling base 204 from falling out of the tray 202. The flanges 256 reduce the internal diameter of the ring 252 of the tray and once the base 204 is in the tray, the flanges overlap portions of the base. Also extending radially from the inner ring 252, between the lower surface 230 and the upper part of the ring 252 is a tray locking projection 258 which cooperates with the locking means 270 and 272 on the leveling base 204 to immobilize the tray 202 bulldozer preventing inadvertent rotation. The leveling base 204, like the mounting tray 202, is circular with a lower surface 260 and a central opening 262. Projecting from the rear side 260A of the lower surface 260 are the - - location rings 220, 222, 224 and 226, which are only partially visible in Figure 7. When the leveling base 204 is snapped into the mounting tray 202, the location rings project toward the cutouts 234, 236, 238 and 240 of the tray 202. The cutouts of the tray 202 have a larger size in relation to the locating rings 220, 222, 224 and 226 of the base. This difference in the relative sizes facilitates the rotation of the tray 202 in relation to the base 204 which would be impossible if the cutouts and rings coincided in both size and shape. To the base 204 an operator 208 and a roll carrier 206 will be mounted. The roll carrier 206 can slide relative to the base 204 when handling the operator 208. A pair of flanges 264, 266 generally in the form of Z, left and right project from the surface 260 of the base facilitating sliding cooperation between the base 204 and a first pair of side flanges 290, 292 complementary to the left and right fins on the roll holder 206. The Z-shaped base flanges project from the edge of the surface 260 of the base and are located directly opposite each other. Each flange 264, 266 has a first leg 264A, 266A, perpendicular to the base surface 260; a second intermediate leg 264B, 266B extends radially inward from the end of the first leg 264A, 266A parallel to the surface 260 of the base, and a third leg 264C, 266C projects perpendicular from the intermediate part away from the surface 260 of the base and offset parallel to the first leg. In this way, each of the Z-shaped ridges comprises an inner surface of the second leg 264B, 266B parallel to the surface 260 of the base which will be placed on top of the surface 284B, 286B parallel to the flanges 290, 292 of complementary fin of the roll holder 206. The outer circumferential surface of at least one of the first legs 264A, 266A of the Z-flanges includes a recess 268 radially inwardly and within the recess 268 a locking ring 270 and an immobilization groove 272. The locking ring 270 projects from the recess 268 radially outward to the extent of the circumferential surface of the base 204, immediately adjacent to the locking ring 270 is the locking groove 272 which can be adapted to the immobilization projection 258. of the mounting tray 202. The groove 272 is placed between the ring 270 and the end of the recess, and is thus limited on both sides. By rotating the mounting tray 202, to fix the leveler in the clamp by the hooks 212, 214, 216 and 218 that are they hold onto the edges of the oblong holes 115, will cause the locking projection 258 to spring off the ring 270 and rest on the locking groove 272. Additionally, a pair of hook-shaped left and right flanges 274, 276 extend parallel to each other from the upper surface of the base surface 260 toward the central base opening 262 to cooperate with a first pair of flanges 294, 296 in Left and right hook shape on the roll holder. The base hook flanges 274 and 276 each have a first hook leg 274A, 276A projecting perpendicular from the base surface 260; a second hook leg 274B, 276B extending radially outwardly from the end of the first hook leg 274A, 276A. Finally, a pair of left and right guide legs 278, 280 are located opposite from the hook flanges 274, 276 on the other side of the central base opening 262. The guide legs 278, 280 are projected perpendicular from the base and guide a pair of complementary guide legs 298, 300 on the roll holder 206. Projecting to the right of the right guide leg 280 and fixed to the lower surface 260 is a bearing 282 for rotatably holding the head 320 of the operator 208. The bearing 282 extends parallel to the right guide leg 280 in the direction of the flange 276 in the form of a right hook. In extension thereof it is through the similar slot 284 with inclined side walls 286, 288 to loosely retain the pin 324 of the operator. The roll holder 206 is a semicircular plate with a lower surface 302 with an external face 302A and an internal face 302B. The right left and right sides 304, 306 adapt to the carrier in a generally oval shape. The carrier is slidably mounted to the base 204 by cooperating left and right fin flanges 290, 292 which cooperate with the left and right Z-shaped flanges 264, 266 of the base. These fin lips 290, 292 project perpendicular from the rear face 302B of the carrier 206 and radially outwardly. The carrier 206 further includes a central opening 308 and a pair of opposed upper and lower oblong holes 310, 312. In use, the rotatable lid 89 can be projected through the central opening 308 while the outer surface of the radial collar 91 bears on the external face 206A of the carrier. The rear face 206B of the carrier further includes flanges 294, 296 in the form of complementary left and right hooks which cooperate in a sliding manner with the hook-shaped shoulders 274, 276 of the base 204 and the complementary guide legs 298, 300 which cooperate sliding way with the guide legs 278, 280 of the base 204. On the rear face 206B, juxtaposed to the right flange 292 and the central opening 308 is a frame 314 on which the nut 324 of the operator is to be fixed 208. The nut, once placed in the frame 314 can not rotate not to slide relative to the frame 314 of the carrier 206. The operator 208 includes a bolt 316 having a threaded stem 318 and a head 320, at one end of the stem, with a countersunk hexagonal socket 322 (not shown) and a hexagonal nut 324. The nut 324 has an internal threading (not shown) which cooperates with the stem 318 of the bolt 316. The head 320 of the operator bolt 316 is rotatably fixed in a bearing 282 on the front of the base 204 and the nut 324 is fixed non-rotatably in the frame 312 of the roll holder 206. In this way, the operator 208 is between the base 204 and the roll carrier 206 when they are assembled together. Since the nut 34 is fixed to the roll holder 206 but is slidable in the channel 284 of the base 204, rotating the bolt 316 moves the nut 324 along the stem by dragging the roll holder 206 with the same , in relation to base 204. As the last article of figure 7 is shown a cover ring 210. This ring 210 has a front surface 210A and an axial circumferential edge 316. The ring includes radially extending left and right ears 328 and 330 from which the left and right pressing flanges 332, 334 project radially. In the leveler assembly, the ring is snapped onto the base 204 after the base 204, the roll holder 206 and the operator 208 are engaged in the mounting tray 202. The lugs 328, 330 are housed in the recess 244, 246 of the mounting tray 202 while leaving room for the mounting tray 202 to rotate relative to the ring 210. The flanges 332, 334 which are placed under pressure, have been pressed on the second intermediate legs 264B, 266B of the Z-shaped shoulders of the base 204. When the mounting tray 202 is manipulated to lock the lever 200 to the mounting bracket 7, the ring 210 remains stationary together with the other parts of the leveler. In Figs. 5 and 7, the "fixed-j" indicia 336 and "free" indicia 338 are placed on the front surface 210A of the ring. A protrusion 340 projecting radially small on the axial edge 242 of the adjacent mounting tray 202 from its edge, can be placed by rotation of the mounting tray 202 aligned with the latched or uncharacterized marks 338 on the ring 210 of cover. An opening 342 is present in the access limit 242 of the tray 202 axially juxtaposed to the protuberance 340. Mounting Similarly, an opening 344 of ring is present on the edge 326 of ring 210 axially juxtaposed cover marked " immobilized "336. the relative locations of the openings 342, 344 and 340 associated marker protrusion 336 and mark immobilization are selected so that when the mounting tray is locked to the clamp, the protrusion 340 and aperture 342 are aligned with a ring that marks "immobilized" 336 and a ring opening 344. The aligned openings 338, 340 and the cover and mounting tray allow the leveler 200 to be operated by a tool (not shown) to be inserted into through the openings to act on the operator 208. When the mounting tray 202 is not immobilized by the clamp 7, the protrusion 340 and its adjacent opening 342 align with the sea "Released" 338 on the cover ring so that the access openings 342, 344 are misaligned, and the tool can not be inserted and the leveler can not be operated. Composite multiple rolled shutter Figure 8 shows an additional roll mounting system for a rolled shutter composed by which two rolls are mounted side by side, each mounted between A pair of clamps gives separate mounting and the two blinds share an intermediate clamp. In describing this embodiment of the invention which is similar to that of Figure 1, corresponding reference numbers (greater than 400) are used in the following for the same or corresponding parts. On the shutter 401 of Figure 8 a pair of rolls 403 and 404 are mounted to a pair of left and right mounting brackets 405, 407 and the rolls share a common intermediate bracket 406. The material of the shutter 409, 410 is schematically indicated and can be rolled and unrolled from the roll by operating a chain operation mechanism 411. Each roll 403 and 404 is provided with a telescopic end pin 413, 414. Similarly in relation to the embodiment of Figure 1, each telescopic end plug 413, 414 at the right end 403A, 404A of the roll 403, 404 facilitates the assembly of the roll. These telescopic end plugs are identical to those described in relation to Figures 1-3 and similar reference numbers greater than 400 are used for similar parts. For the two rolls that are to be operated by the single operation mechanism 411, they are coupled together by a coupling arrow 746 indicated by dotted lines. The coupling shaft 746 has a cross section to form the coupling of the stud opening 483A of stud 483 of plug 413 of end of roll 403 left. The left end 404B of the right scroll 404 is provided with an end pin 748 which is provided with an opening similar to the stud opening 483A (not shown). Additionally, the composite shutter 401 of FIG. 8 is provided with a leveling module 600 in the intermediate bracket 406. The leveling module 600 is identical to the leveler 200 described in relation to Figures 4-7 and similar reference numbers greater than 400 are used for similar parts. The intermediate clamp 406 is identical to the clamp 7 which is described in relation to the previous figures. The central apertures 406A, 630, 626 and 708 of the bracket 407 intermediate respectively tray 602 mounting leveling the base 604 bulldozer and the carrier 606 of leveler roll are large enough to accommodate the arrow 746 coupling with space to prevent the roll of leveling roll is moved up or down in order to level the two rolls 403, 404 of the shutter 401. The mounting of the rolls of the shutter 401 can be made as follows: the left roll 403 is mounted first pressing the end plug 413, when placing the roll 403 between the left clamp 405 and the intermediate clamp 406, and subsequently retract the end plug 413 to its extended position, place the clamping ring 415 adjacent the roll end 403A to immobilize the terminal pin preventing depression. By inserting the coupling arrow 746 from the right side of the clamp 406 into the stud opening 483A. The assembly of the right scroll 404 by pressing the end plug 414, placing the left end plug 748 on the projecting portion of the coupling arrow 746, placing the roll 404 with respect to the right bracket 407 and subsequently retracting the pin 414 to its extended position, place the locking ring 417 adjacent the roll end 404A to immobilize the terminal pin against depression. Figure 9 is an exploded view of the central parts of the composite shutter of Figure 8 with the intermediate clamp. As can be seen in this exploded view, the coupling arrow 746 is provided with a coupling head 750 from which three of the projections 752, 754 and 756 are bent which generates a generally triangular cross section of which the projections are the vertices and connecting sides (752A, 754A, 756A) are curved. The 748 end plug has an internal recess 756 of identical cross section and coincidentally receiving the coupling head 750. The projections 752, 754 and 756 of the head 750 run in matching grooves 758, 760 and 762 of the end pin 748. Therefore, a secure connection is made between the coupling arrow 746 and the two rolls 403 and 404 and the composite shutter 401 can be operated by a single operation means 411. Figures 10-12 and 13A, 13B and 13C show a preferred operating mechanism 11, 411 and its cooperation with the roll and the clamp. Figure 10 shows the roll mounting system of Figure 1, in exploded view from one side of the operation unit 11 including an alternative mounting bracket 5B, the operation unit 11 and an adapter end plug 768 for the left side 3A of roll 3 of shutter. The mounting bracket 5B is of the type described in relation to Figures 3-7 insofar as it includes a pattern of radially distributed oblong slits or holes 115 arranged around the central opening 5C. The clamp 5B is additionally of a suitable type of so-called cassette system wherein the blind roll 3 is enclosed in a housing or upper case (not shown, but conventional). The clamp 5B, as shown in Figure 10, is adapted to Connecting with said housing or upper box and acting as an end wall therefore. In Figures 13A-13C a clamp is shown having a shape identical to that of the intermediate clamp 406 of Figure 10. Figures 11 and 12 show the operation module 11 of the roll mounting system. This includes a housing 770, a chain wheel 772 and a coupling device 774. The chain wheel 772 is rotatably hinged in the housing 770 and can be rotated by a conventional rosary chain (not shown). The rotation of the chain wheel 772 will rotate the coupling device 774. The coupling device 774 has axially extending shoulders for rotatably coupling a connector 776. The connector 776 has complementary axially extending shoulders. The housing 770 has a central cylindrical portion having a large diameter 778 and a small diameter section 780. The central cylindrical portion further defines a central bore which rotatably receives an inner link 782 in the connector 776. A total of three different coil springs 784, 786 and 788 are provided to prevent the connector 776 from rotating when it is not driven by the coupling device 774. The 776 connector is provided with a hole centrally which, in use, is concentric with the perforation in the housing 770. Slidably engaged in the central hole is a locking pin 790 for the purpose of fixing the housing 770 to the mounting bracket, as will be further described in FIG. present later. The immobilization pin 790 is also retained in the central bore 69 of the connector 25 by a stem with an enlarged head 792. As seen in Figure 12, the housing 770 is also provided with hook members 794, 796 for mounting to the bracket 5B. Each hook includes a stem portion 794A, 796A and a holding portion 794B, 796B extending downward from the top of the stem portion. The lower portion of the stem portions are connected to the housing 770. In addition, a protection bridge 798 is provided, which is snapped onto the housing 770 as a separate element for guiding and retaining the rosary chain (not shown, but conventional) after it has been placed in the housing 770. Also visible in Figure 12 is the central hole of the connector 776 which opens into a recess 800 and wherein the stem of the locking pin 790 has a notch 802. Figures 13A, 13B and 13C show the steps of assembling the operation unit 11 to a clamp 5 of mounting. The mounting bracket 5 is similar to the mounting bracket 5B shown in Figure 1, but in an alternative basic form with no provisions for cooperating with a housing or upper case. The assembly to be described is similar for both forms of mounting bracket. Mounting clamp 3A generally extends horizontally in a first flange 101 and is vcally dependent extending through a second flange 103. First flange 101 has slots 105, 107 and 109 for receiving fasteners (not shown, but conventional) for mounting the first flange against either below the horizontal construction surface or to a vcal construction surface adjacent to the window opening. The second flange 103 has similar grooves 111, 113 for alternative mounting to a vcal construction surface in the vicinity of a window opening. To receive the driving unit 11, the second flange 103 of the driving unit has a pattern of radially distributed slots 115 distributed around a central opening 5C. The spacing of each pair of radially aligned slots 115 corresponds to the spacing between the hook members 794 and 796 in the housing 770 of the drive unit 11. The distribution of the four pairs of grooves 115 aligned radially allows a selection of the angular positions in which the drive unit 11 with respect to the clamp flanges. This is particularly convenient for situations where the surface to which the clamp is mounted is inclined. In this way, the selection of the angular position for mounting the drive module 11 to the clamp can cancel the angle of inclination. Figure 13A shows the drive unit 11 which is presented in the clamp 5, but has not yet been coupled. Figure 11B shows the first step of coupling with hook members 794 and 796 projecting through a pair of vcally aligned slots 115. The decrease of the housing 770 to immobilize the clamp by the hook fastening portions 794B, 796B which are clamped on the edges of the oblong holes 115. With this downward movement carried out as shown in Figure 11C, the locking pin 790 will also completely engage with the central opening 5C by expanding a spring 804 (visible in Figure 12) which deflects the locking pin in the direction of the clamp. This will effectively immobilize the driving unit 11 with the clamp 5 and prevent it from accidentally disengaging. The separation is only possible by having the immobilization pin 790 retracted in the central hole (as described above), sufficiently to disengage the hook members 794 and 796 from their respective slots 115. The combination of the mounting hooks with the slots 115 of the clamps not only provides an easy immobilization of the leveler or of the operation module 11 to a clamp, it also conveniently leaves the central opening of the clamp open. This is particularly useful for composite shutters in which a plurality of rolls are used and the rolls are operatively connected by an articulated arrow (as shown in Figure 8 and 9). At the same time, the free central opening is of particular importance to allow the immobilization pin 790 of the operation module 11 to be operational. Of course, this invention is not limited to the exact configuration of the modalities described in the foregoing which can be modified without departing from the scope of the invention or sacrificing all of its advantages. In this regard, the terms in the preceding description and in the claims that follow such as "left, right, front, rear, vertical and horizontal have been used only as relative terms to describe the relationships of the various elements of the mounting system of For example, although the pins 71A, 73A and 75A described in relation to Figure 3 are shown to be on the outer surface of the tabs which cooperate with a slotted portion 29A of the internal axial end 29 of the cylindrical body 21, instead of this they can also be on the inner surface and interact directly with the retaining flanges 45, 47 and 49 of the cylindrical body 21. In addition, the spring 25 is an optional part of the terminal plug assembly. It is possible to use the terminal plug assembly of the invention without the spring. In that case, the plunger 23 needs to be manipulated to its desired depressed or retracted position, for example by rotating the locking ring 15 for installation of the roll, so that the stud can move in association with the opening in the clamp. In addition, Figure 6 shows four hooks and four location rings, but a different number of these is possible. It is presented that two or more hooks and at least one locating ring provides the best connection of the leveler to the clamp. Although a manual operation mechanism is shown (11, 411), the blinds can also be motorized. Although the leveling module 200 including a cover ring 210 is described, the leveling module will also be easily mountable to the clamp and operational if the ring is not used. Even the safety feature of the unavailable operator 208 is not accomplished by not having a cover ring 210.

Although the pair of opposing upper and lower oblong holes 310, 312 in the roll holder 206 of the leveling module 200 is not used in the described embodiments. They provide for the possibility of mounting a roll, which instead of the telescoping end pin 13 described includes an alternative terminal pin with a pair of hook-like mounting means, similar to the hooks 794, 796 as described in to the operation module 11. Said alternative terminal pin can be mounted to the leveling module 200 which in turn is mounted to a clamp. Said alternative terminal pin may additionally include a locking pin 790 similar to one in the operation module. The operating module 11 is described as including a locking pin 790, and it is also possible to use an operation module without said plug and having the module 11 which is locked in the bracket 5 by its hooks 794, 796 only. Although the rolled shutter composed of figure 8 shows only one person with two rolls side by side, shutters with more than two rolls are also possible. The number of clamps intermediates will increase by one for each additional roll. It is also likely that more leveling modules are also used. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention is that which is clear from the present description of the invention.

Claims

RSZVIEgPICACZO-ffiS Having described the invention as above, the content of the following claims is claimed as property:

1. A roller shutter assembly system, comprising: at least one roll, at least one telescopic terminal pin engageable within an end opening of one of the rolls, the terminal pin includes a hollow body and a plunger member that it can be telescopically moved, coaxially disposed with respect to the hollow body so that a first axially extending length portion of the other plunger projects from the hollow body and a second axially extending length portion that is held within the hollow body , the plunger can move telescopically between a first end position in which the first portion of the plunger projects from the cylindrical body and a second end position in which at least part of the first portion is inserted into the cylindrical body , and at least two clamps, characterized in that: at least one of the clamps includes a central opening and wherein the first portion of axial length can be mounted in the central opening of the clamp. The mounting system according to claim 1, characterized in that the telescopic end plug further comprises a rotatable end cap fixed rotatably to the end of the second length portion, the end cap being adapted to be received in the central opening of the second end portion. the clamp so that the telescopic terminal pin and the roll attachable thereto can be mounted rotatably on the clamp. 3. The mounting system according to claim 1, characterized in that the clamp further includes at least two pairs of openings positioned radially around the central opening and the opening of each pair are aligned with each other, characterized in that it comprises: operating module or a leveling module, or both that are provided with a mounting means adapted to cooperate with at least a pair of clamp grooves. The mounting system according to claim 3, characterized in that the mounting means are hook-like members adapted to project through the openings in the clamp and hold the edge of the openings. The assembly system according to claim 4, characterized in that each of the hooks includes a stem portion and a grip portion extending from the top of the stem portion. The mounting system according to claim 5, characterized in that the holding portion extends laterally from the upper part of the stem portion. The assembly system according to claim 5, characterized in that the fastening portion extends downwardly from the stem portion. 8. The combination of a clamp and a module adapted to cooperate with the clamp, wherein the clamp is characterized in that it comprises: a rim that includes at least a pair of openings placed spaced apart and opposite each other in the rim around the opening central, and wherein - the module comprises at least a pair of mounting means adapted to cooperate with at least a pair of slots in the clamp. 9. A telescopic terminal plug engageable within an end opening of a roll, characterized in that it includes a hollow body and a movable member telescopically or plunger disposable coaxially with respect to the hollow body so that a first axially extending length portion of the plunger projects from the hollow body and a second axially extending length portion is held within the hollow body, and the plunger it can move telescopically between a first end position in which the first portion of the plunger projects from the cylindrical body and a second end position in which at least part of the first position is inserted into the cylindrical body, and the terminal pin includes an immobilization member that can be placed on the first axial length portion to immobilize the plunger preventing movement toward the second end portion, and wherein the first axially extending length portion of the plunger is threaded and the immobilization member is rotatably receivable on the threading so that it can be placed on the first longitudinal portion for immobilization of the plunger preventing axial movement towards its second end position beyond the immobilization member. 10. A leveling module, characterized in that it includes: a base member and a roll carrier defiably connected to the base member, an operator between the base and the roll carrier and connected thereto so that manipulation of the operator causes the roll carrier to slide relative to the base member, and wherein the leveling module further includes a mounting means adapted to removably mount the module to the clamp. SUMMARIES? DE LA IBG EBECIQM A roller shutter assembly system is provided, which includes at least one roll (3, 403, 404), at least one telescopic end plug (13, 413, 414) and at least two clamps (5, 5B, 7, 405, 406, 407). The telescopic end pin (13, 413, 414) is engageable within an end opening of one of the rolls. The terminal pin includes a hollow body (21) and a telescopically movable member or plunger (23), disposable coaxially with respect to the hollow body so that a first axially extending length portion (63) of the other plunger projects from the hollow body and a second length portion extending axially is maintained within the hollow body (65). The plunger can move telescopically between a first end position in which the first portion of the plunger projects from the cylindrical body and a second end position in which at least part of the first portion is inserted into the cylindrical body. . At least one of the clamps includes a central opening (5A, 7C, 7A) and the first portion (63) of axial length can be mounted in the central opening of the clamp. The clamp can additionally include at least two pairs of openings (115) positioned radially around the central opening with the opening of each pair that are aligned with each other. An operation module (11) of the leveling module (200) or both can be provided with a means (794, 796, 212, 214, 216, 218) adapted to cooperate with at least a pair of slots (115) of the clamp.